%0 Journal Article
%A Ostmeyer, Johann
%A Berkowitz, Evan
%A Krieg, Stefan
%A Lähde, Timo A.
%A Luu, Thomas
%A Urbach, Carsten
%T The Antiferromagnetic Character of the Quantum Phase Transition in the Hubbard Model on the Honeycomb Lattice
%J Physical review / B
%V 104
%N 15
%@ 1098-0121
%C Woodbury, NY
%I Inst.
%M FZJ-2021-03994
%P 155142
%D 2021
%X We provide a unified, comprehensive treatment of all operators that contribute to the antiferromagnetic, ferromagnetic, and charge-density-wave structure factors and order parameters of the hexagonal Hubbard Model. We use the Hybrid Monte Carlo algorithm to perform a systematic, carefully controlled analysis in the temporal Trotter error and of the thermodynamic limit. We expect our findings to improve the consistency of Monte Carlo determinations of critical exponents. We perform a data collapse analysis and determine the critical exponent β=0.898(37) for the semimetal-Mott insulator transition in the hexagonal Hubbard Model. Our methods are applicable to a wide range of lattice theories of strongly correlated electrons.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000747822700002
%R 10.1103/PhysRevB.104.155142
%U https://juser.fz-juelich.de/record/902046